Ted, I am having a similar issue top this post. 94 toyota…

Customer Question

Hi Ted, I am having...

Hi Ted, I am having a similar issue top this post. 94 toyota pickup.checking for a draw. measured 0.28 mA and when I removed the AM2 fuse from the hood it goes down to 0.03 mA.Is this a large enough draw to cause an issue?Symptoms: car battery drains when I let truck sit. Truck sits for weeks to months. I now have to disconnect and reconnect the battery each time to ensure my batteries don't die. Went through 3 batteries in 1 year.

Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

28mA is negligible and within normal battery draw limits. Up to 40 mA is considered normal.

The AM2 fuse powers the ignition switch and also goes to the EFI fuse, which is a power feed to the engine controller. The small amount of draw that you're seeing is almost surely the engine controller given it's the only thing on the circuit that receives a constant power feed. Try unplugging the ECM and see if the draw goes away, although I'm not sure that replacing the ECM would lower the draw.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.